Paper-folding machine.



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3 Sheets-Sheet l. IIIS` Il llll u. K. KING. PAPER FOLDING MACHINE.

(Application led Sept. V222, 1900.)

(No Model.)

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No. 686,306. Patentd Nov. I2, IQOI.

H. K. KING.

PAPER FOLDING MACHINE.

(Application filed` Sept. 22, 1900.) (No Model.) 3 Sheets-Sheet 2.

A--IIII IEW No. 686,306. Patented Nov. l2, lem. H. K. KING.

PAPER FoLmNG MACHINE,

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UNITED STATES PATENT OFFICE.

HOWARD K. KING, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CHAM- BERS BROTHERS COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A COR- PORATION OF PENNSYLVANIA.

PAPER-FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 686,306, dated November 12, 1901.

Application filed September 22, 190Q. Serial No. 30,803. (No model.)

To @ZZ whom it may concern:

Be it knownthat I, HOWARD K. KING, a citi- Zen of the United States, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Paper-Folding Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, of which- Figure 1 is a plan view of part of afoldingmachine in which my invention is embodied. Fig. 2, Sheet 2, is a vertical section on line 2 2, Fig. l. Fig. 3 is a vertical section on line 3 3, Fig. 1. Fig. 4, Sheet 3, is a plan View, enlarged, of the side adjusting device. Fig. 5 is a horizontal section, enlarged, on line 5 5, Fig. 6. Fig. 6 is an inner side elevation, enlarged, of the side adjustingdevice. Fig. 7 is an end elevation of Fig. 6. Fig. Sis avertical section on line 8 8, Fig. 4.

This invention relates more particularly to means for adjusting sheets of paper in folding-machines transversely to the direction of travel of the sheet while the same Vis being conveyed into position to be operated upon by folding devices.

The precise nature of the invention will appear from the following description, reference being had to the-accompanying drawings, in which are shown such parts only of a foldingmachine as are deemed necessary to a clear understanding of my improvement.

Referring to the drawings, 1 is a part. of the frame of the machine.

2, Figs. 1 and`3, represents the first set of folding-rollers, and 3, Fig. 3, the vibratory blade for tucking the sheet through the slotted plate 4 into the bite of the said rollers. In the particular machine shown the sheet as it passes through the said rollers is divided into two similar sheets by means of a rotary knife 5. (Indicated by dotted lines in Fig. 3.) These sheets are carried forward by the usual tapes 6 until arrested by a stop bar or bars 7, Figs. 1 and-2. One of said sheets is tucked into the bite of folding-rollers 8 by a blade 9 and the other sheet between similar rollers 10 by a blade 11, said rollers 8 and 10 being at right angles to and in a plane below rollers 6. As seen in Figs. 1 and 2, the first sheet is conveyed from rollers 8 above a set offolding-rollers 12 at right anglesto and below the plane of rollers 8 and l0 by and between two contiguous tapes, one of which, 13, passes around the forward one of the foldingrollers 8, thence under a roller 14, over a roller 15, around a roller 15a, and under a roller 16, thence returning to the said folding-roller S, all as seen in Fig. 2 and in part in Fig. 1. The other of said tapes, 13a, passes around a roller 17, over the. rear one of the folding-rollers S, under the forward one of the latter rollers, under a roller 18, and over and around a roller 19, returning to the first-men` tioned roller 17 also as seen in Figs. 1 and 2. The second sheet is conveyedfrom the folding-rollers 10 in a plane slightly below the plane in which the first sheet is carried by means of two tapes, one of which, 20, passes around and under the forward one of the foldingrollers`10, under` a roller 2l, and around a roller 22, returning under the aforementioned roller 17 to the said forward one of the folding-rollers l0. The other, 20, of said tapes passes around the rear one of the last-mentioned folding-rollers, under the forward one thereof,around a roller 23, and over a roller 24:, returning to the said folding-roller 10. It will thus be seen that each sheet will pass from the respective sets of folding-rollers 8 and 10 between contiguous driven tapes and will be carried forward thereby until their motion is arrested by'a stop-bar, hereinafter referred to.

The sheets are adjusted or guided transversely while being carried forward by the tapes 13 13a and 2O 2Oa by means of a side guide device, which for the purposes of a certain adjustment hereinafter described I usually make in two separate parts or plates, one of which (marked 25) is the guide for theupper sheet-that is, the sheet coming from the rollers S-and the other (marked 26) for the lower sheet from the rollers 9. Each of the plates has a face or edge 27, so located and inclined in such manner and at such angle, as indicated by a dotted line in Fig. 4. and shown by full line in Fig. 5, that as the sheets are carried forward by the tapes toward the last set of folding-rollers 12, as previously described, their outer edges will impinge against the said inclined faces respectively, and they (the sheets) will be thereby forced over laterally as they advance iinally to the required predetermined position over the folding-rollers 12, to be tucked into the bite of said rollers by the usual vibratory blade 23.

In order to prevent buckling of the margins of the sheets, so as to insure a proper contact of the edges of the sheets with the said inclines, I make the latter the bottom of grooves 25a and 26a in the respective plates 25 and 26, as seen in Figs. 6, 7, and 3.

In order to effect lateral adjustments of the guide-plates and at the same time a corresponding adjustment of the stop-bars 7 and of tapes 13 13 and 2O 2Oa contiguous to the said plates without altering the positions of the said plates with relation to each other, I have devised the following construction: 29 is a bar to which are secured the said stop-bars, as also the side guide-plates and the bracket 30, to which bracket are journaled the particular rollers 14, dac., at that end of the machine over which pass the said contiguous tapes. This bar has on its under side at each end lugs orprojections 29, with screw-threaded holes, through which pass threaded shafts 31, that are journaled in suitable support-s of the frame of the machine. On the outer end of each of thse shafts is a bevel-gear 32, that engages a similar gear 33 on a 1ongitudinal shaft 34. The guide-plates 25 and 26 are secured to a downward extension 29b of the projection 29a near the forward end of the bar, and the part 30a of the bracket 30, to which the bar is secured, has a lug 30h, whose flat under side bears upon the top of the transverse rail 35 of the frame of the machine. The said bracket has also a depending limb 30, on the free end of which is journaled a horizontal roller 36, that bears against the side of a rail 35b of the frame below the top rail 35. By turning a hand-wheel 37 on the end of shaft 34 the bar 29 and adjunctst'. e., the said stop-bars, guide-plates, and roller-bracket, and consequently the said tapes 13 13a and 2O 20a-may be adjusted transversely as a whole. It is or may, however, sometimes be necessary to make adjustments of the part of the guide-plate for the one sheet without affecting the other part. To this end I secure the lower plate 26, which is fixed to the bar 29, to the upper plate 25 by means of shoulder-screws 38 passing through oblique guide-slots 39, Figs. 4 and 8, in the latter plate. These screws hold the one plate closely to the other, yet permitting the hereinafter-described sliding adjustment of the lower plate. To readily effect such movement when required, I connect the ixed plate 25 to the sliding or adjustable plate 26 by means of an obliquely-disposed screw 40, that passes through a threaded hole in a lug 41, projecting up from the lower or slidable one,

and the collared head of the screw is journaled in a lug 42, that projects from the Xed plate, all as seen in Figs. 4 and 6. The Obliquity of the said screw corresponds with that of the aforesaid slots 39.

It will be obvious that byturning the milled head of the screw 40 the lower plate may be readily adj usted transversely.

I remarkthat the stop-bars may, if desired, bemade adjustable to and fro on the bar 29 by devices well known and in common use in folding-machines.

Those of the sets of tapes 13 13a and 20 20 nearest to the guide-plates are arranged to run close to the plates in order that that mar gin of the sheets shall be within the control of the tapes, so as to prevent liability of 'twisting of the sheets-that is, to insure it being carried forward in a straight line as modified only by the action of the guideplates. Further, in order to obtain sufficient pressure or friction upon the said margin of the sheet I provide a support for the tapes consisting of a lateral extension 26b of the bottom part of the guide-plate 26, as shown, in connection with a spring-tension roller 43, of usual construction, to exert some pressure upon the tapes, (but not such as will prevent the sheets being pushed over by the guideplates,) this roller being carried by a frame or yoke 44, that is pivoted on a shaft 45, projecting from a bracket 46, which is secured to the plate 25.

Having thus described the construction of my invention, I shall now describe the mode of operation thereof,as follows:

The' sheet divided by the cutter 5, having passed between the first set of folding-rollers 2, is carried over by the tapes 6 until arrested by the stop-bars 7. One of the divisions of the sheet is then folded by the rollers 8 and the other by the rollers 10, the rst division being carried forward into position over the last set of folding-rollers 12 by and between the tapes 13 13a and the second division by and between the tapes 2O 20a. 0n the way the edge of the first division enters the end of the groove 25 of the upper guide-plate, and the other division enters the groove 26nd of the lower guide-plate, and by reason of the described inclination of the bottom of the grooves the two sheets are caused to move over to a predetermined line-that is, to the proper position laterally to be tucked into the bite of the folding-rollers 12 by the suitably timed blade 2 8, whereby the final fold is imi parted to the two sheets. The forward movement of the said sheets is arrested by the same coming into contact with a stop-bar 47 of usual construction.

I do not claim to have been the first to devise an inclined guide-plate for shifting a sheet transversely while the same is in motion nor of such guide-plate with grooves; but

VtThat I claim as new, and desire to secure by Letters Patent, is

1. In a foldingmachine,the combination of IOO IIO

a first set of folding devices, a second set of folding devices at right angles to the first set, a third set of folding devices at right angles to the second set, the tapes for conveying the sheet from the rst set over the second set, the stop-bar, the guide-plate having the inclined face, tapes running closely adjacent to said guide-plate by and between which the sheet is adapted to be carried from the said second set of folding devices over said third set of folding devices, means for supporting that part of said last-mentioned tapes opposite the guide-plate, and the tension-roller, or the like, adapted to exert pressure upon said tapes, substantially as and for the purpose set forth.

2. In a folding-machine, the combination of a first set of folding devices, a second set of folding devices at right angles to the first set, a third set of folding devices parallel with said second set,^a fourth set of folding devices at right angles to said second and third sets, means for conveying sheets from the first to the second and third sets of folding devices, the stop bar or bars, the guide-plate having the inclined face, the tapes running closely adjacent to said guide-plate by and between which tapes a sheet is adapted to be carried from the said second set of folding devices over the said fourth set, the tapes underlying the last-mentioned tapes between which a sheet is adapted to be carried over the said fourth set of folding devices, together with means for applying pressure upon said several tapes, substantially as and for the purpose set forth.

3. In a folding-machine, the combination of the first set of folding devices, a second set of folding devices at right angles to the first set, the tapes for conveying the sheet 4;. In a folding-machine, the combination of the two sets of contiguous tapes the one set being in a plane below the other set, and the side adjusting guide-plates having the inclined faces, and means for effecting lateral adjustments of one of said plates independ` ently of the other, substantially as and for the purpose set forth.

5. In a folding-machine, the combination of a first set of folding devices, a second set of folding devices at right angles to the first set, a third set of folding devices at right angles to the second set, the tapes for conveying the sheet from the first set over the second set, the stop-bar, the guide-plate having the inclined face, together with the tapes running closely adjacent to said guide-plate by and between which the sheet is adapted to be carried from said second set of folding devices over said third set of folding devices, substantially as and for the purpose set forth.

In testimony whereof I have hereunto affixed my signature this 13th day of July, A. D. 1900.

HOWARD K. KING. 

